I am soon setting up a new inflatable hot tub (Intex Portable Bubble Massage Pure Spa for 4 people, 210 gallons). Had I not searched online about how to get started, I would never have thought that a new tub should be purged before using it. I ordered and received Ahh-some Water Clarifier and Bio-Cleaner. I see now that there are multiple Ahh-Some products. Is this the right one to use or do I need something else?